t 32s ] 



k. The pipe of the conductor, which enters into the cavity in 

 the back part of the coulter. 



There are two ftrong iron wheels which are placed in the back 

 part of the frame, letter e, for the purpofe of travelling from one 

 place to another ; which wheels elevate the coulters about fix 

 inches above the furface of the ground, and are immediately re- 

 moved when fet to work. There are alfo regulators for increafing 

 and decreafing the quantity of grain to be fown, which with the 

 wheels cannot be difcovered in either of the views. 



Figure Ill.f 



Reprefents a running hoe for cutting the weeds between 

 the drills, and adding earth to the rows of vegetables $ the 

 two points collect the weeds, which are in a manner in- 

 clofed, and more effectually deftroyed than when the blade 

 is fquare, or angular. 



G.W. 



• Is not the invention of, but altered by Mr. Winter. 



Article XLIL 



No* 73) Oxford-ftreet, London, 

 Sir, March 20, 1778. 



AS it is but too common for individuals to 

 fpeak roundly on fubje&s in which they arc 

 particularly intereftedj and as fuch afiertions are 

 generally viewed with a jealous eye by the public, 

 I am induced to content myfelf with referring the 

 public to individuals who have made experiments in 

 Y 2' drilling, 



